Device and method for detecting overlap of pulse signals and apparatus for estimating distance using the same
    3.
    发明授权
    Device and method for detecting overlap of pulse signals and apparatus for estimating distance using the same 有权
    用于检测脉冲信号的重叠的装置和方法以及使用其来估计距离的装置

    公开(公告)号:US07570199B2

    公开(公告)日:2009-08-04

    申请号:US11925204

    申请日:2007-10-26

    IPC分类号: G01S13/75

    CPC分类号: G01S13/76

    摘要: There is provided a device and method for detecting an overlap of pulse signals, capable of easily detecting a point where reference and delayed pulse signals overlap each other, and an apparatus for estimating a distance using the same. The device for detecting an overlap of pulse signals, the device detecting a point where first and second pulse signals having different frequencies begin to overlap each other, the device including: a duty adjustor generating a third pulse signal by increasing a duty of the second pulse signal; a pulse signal calculator multiplying the first and second pulse signals by the third pulse signal, respectively and adding respective results together to output a signal; and an overlap determiner determining a middle of a pulse with a greatest width in the signal outputted from the pulse signal calculator as a point where the first and second pulse signals overlap each other.

    摘要翻译: 提供了一种用于检测脉冲信号的重叠的装置和方法,其能够容易地检测参考和延迟的脉冲信号彼此重叠的点,以及用于使用该距离估计距离的装置。 用于检测脉冲信号的重叠的装置,所述装置检测具有不同频率的第一和第二脉冲信号的点开始彼此重叠,所述装置包括:占空比调节器,通过增加第二脉冲的占空比来产生第三脉冲信号 信号; 脉冲信号计算器分别将第一和第二脉冲信号乘以第三脉冲信号,并将各个结果相加并输出信号; 以及重叠确定器,确定从脉冲信号计算器输出的信号中具有最大宽度的脉冲的中间,作为第一和第二脉冲信号彼此重叠的点。